A370102 - cp's OEIS frontend

A370102 a(n) = Sum_{k=0..n} binomial(4n,k) binomial(5*n-k-1,n-k).

n	a(n)
0	1
1	8
2	128
3	2312
4	44032
5	864008
6	17282432
7	350353928
8	7172939776
9	147972367880
10	3070951360128
11	64044689834760
12	1341056098444288
13	28176478479561992
14	593725756425591680
15	12542160174109922312
16	265525958014053580800
17	5632170795392966388744

[1, 8, 128, 2312, 44032, 864008, 17282432, 350353928, 7172939776, 147972367880, 3070951360128, 64044689834760, 1341056098444288, 28176478479561992, 593725756425591680, 12542160174109922312, 265525958014053580800, 5632170795392966388744]

cp's OEIS Frontend

A370102 a(n) = Sum_{k=0..n} binomial(4n,k) binomial(5*n-k-1,n-k).

Table of values

List of values

cp's OEIS Frontend

A370102 a(n) = Sum_{k=0..n} binomial(4*n,k) * binomial(5*n-k-1,n-k).

Table of values

List of values

A370102 a(n) = Sum_{k=0..n} binomial(4n,k) binomial(5*n-k-1,n-k).